mirror of
https://github.com/Dingo-Shenanigans/ReSkate.git
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AyeZeeBB
6d542536e1
A mod with a reskate-plugin.json is a plugin: Luau scripts that run in their own VM, with only
the reskate API ReSkate registers for them. Luau 0.741 is vendored in External/luau (the VM and
compiler only: no native code generation, no loadstring, io or C modules).
- Limits: 64 MB of memory, 50 ms a call, 2 ms a tick on average (over it for 3 s stops it),
more than 5 errors in 10 s stops it, 50 log lines a second. A plugin over a limit cannot catch
it in a pcall and carry on.
- API: reskate.log, on (load, unload, tick, level_loaded, level_unloading), timers, the level,
its own package's files and JSON, require inside the package; console.command and print
("console"); storage get, set, add and keys ("storage"), 1 MB in
%LOCALAPPDATA%\ReSkate\Plugins\<mod>\storage.json.
- Found every 2 s among the mods mods.json leaves on: switching a mod, or changing a plugin's
files, loads, unloads or reloads it without a restart. A package holding a program is refused.
- plugin list, commands, reload, off and on in the console. A plugin cannot take a name of
ReSkate's own commands.
- Tests: DINGOSDK_BUILD_PLUGIN_TESTS, including plugins written to break the sandbox.
160 lines
3.1 KiB
C++
160 lines
3.1 KiB
C++
// This file is part of the Luau programming language and is licensed under MIT License; see LICENSE.txt for details
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#pragma once
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#include "Luau/Bytecode.h"
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#include <stdint.h>
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namespace Luau
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{
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inline int getOpLength(LuauOpcode op)
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{
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switch (op)
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{
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case LOP_GETGLOBAL:
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case LOP_SETGLOBAL:
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case LOP_GETIMPORT:
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case LOP_GETTABLEKS:
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case LOP_SETTABLEKS:
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case LOP_NAMECALL:
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case LOP_JUMPIFEQ:
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case LOP_JUMPIFLE:
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case LOP_JUMPIFLT:
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case LOP_JUMPIFNOTEQ:
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case LOP_JUMPIFNOTLE:
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case LOP_JUMPIFNOTLT:
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case LOP_NEWTABLE:
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case LOP_SETLIST:
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case LOP_FORGLOOP:
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case LOP_LOADKX:
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case LOP_FASTCALL2:
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case LOP_FASTCALL2K:
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case LOP_FASTCALL3:
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case LOP_JUMPXEQKNIL:
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case LOP_JUMPXEQKB:
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case LOP_JUMPXEQKN:
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case LOP_JUMPXEQKS:
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case LOP_GETUDATAKS:
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case LOP_SETUDATAKS:
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case LOP_NAMECALLUDATA:
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case LOP_NEWCLASSMEMBER:
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case LOP_CALLFB:
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case LOP_CMPPROTO:
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case LOP_NEWCLASS:
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return 2;
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default:
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return 1;
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}
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}
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inline bool isFastCall(LuauOpcode op)
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{
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switch (op)
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{
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case LOP_FASTCALL:
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case LOP_FASTCALL1:
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case LOP_FASTCALL2:
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case LOP_FASTCALL2K:
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case LOP_FASTCALL3:
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case LOP_FASTPCALL:
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return true;
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default:
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return false;
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}
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}
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inline bool isJumpD(LuauOpcode op)
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{
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switch (op)
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{
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case LOP_JUMP:
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case LOP_JUMPIF:
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case LOP_JUMPIFNOT:
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case LOP_JUMPIFEQ:
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case LOP_JUMPIFLE:
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case LOP_JUMPIFLT:
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case LOP_JUMPIFNOTEQ:
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case LOP_JUMPIFNOTLE:
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case LOP_JUMPIFNOTLT:
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case LOP_FORNPREP:
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case LOP_FORNLOOP:
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case LOP_FORGPREP:
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case LOP_FORGLOOP:
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case LOP_FORGPREP_INEXT:
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case LOP_FORGPREP_NEXT:
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case LOP_JUMPBACK:
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case LOP_JUMPXEQKNIL:
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case LOP_JUMPXEQKB:
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case LOP_JUMPXEQKN:
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case LOP_JUMPXEQKS:
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case LOP_CMPPROTO:
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return true;
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default:
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return false;
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}
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}
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inline bool isSkipC(LuauOpcode op)
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{
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switch (op)
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{
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case LOP_LOADB:
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return true;
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default:
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return false;
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}
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}
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inline int getJumpTarget(uint32_t insn, uint32_t pc)
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{
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LuauOpcode op = LuauOpcode(LUAU_INSN_OP(insn));
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if (isJumpD(op))
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return int(pc + LUAU_INSN_D(insn) + 1);
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else if (isFastCall(op))
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return int(pc + LUAU_INSN_C(insn) + 2);
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else if (isSkipC(op) && LUAU_INSN_C(insn))
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return int(pc + LUAU_INSN_C(insn) + 1);
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else if (op == LOP_JUMPX)
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return int(pc + LUAU_INSN_E(insn) + 1);
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else
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return -1;
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}
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inline bool isFallthrough(LuauOpcode op)
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{
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switch (op)
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{
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case LOP_RETURN:
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case LOP_JUMP:
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case LOP_JUMPBACK:
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case LOP_JUMPX:
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case LOP_FORGPREP:
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case LOP_FORGPREP_NEXT:
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case LOP_FORGPREP_INEXT:
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return false;
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default:
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return true;
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}
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}
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inline bool isLoopJump(LuauOpcode op)
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{
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switch (op)
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{
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case LOP_JUMPBACK:
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case LOP_FORGLOOP:
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case LOP_FORNLOOP:
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return true;
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default:
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return false;
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}
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}
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} // namespace Luau
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